Correlation between electroconductive and structural properties of proton conductive acceptor-doped barium zirconate
نویسندگان
چکیده
منابع مشابه
Proton trapping in yttrium-doped barium zirconate.
The environmental benefits of fuel cells have been increasingly appreciated in recent years. Among candidate electrolytes for solid-oxide fuel cells, yttrium-doped barium zirconate has garnered attention because of its high proton conductivity, particularly in the intermediate-temperature region targeted for cost-effective solid-oxide fuel cell operation, and its excellent chemical stability. H...
متن کاملUnraveling the defect chemistry and proton uptake of yttrium-doped barium zirconate
A review of the experimental literature documenting water uptake in yttrium-doped barium zirconate in combination with new results obtained here show that much of the observed scatter can be explained in terms of barium deficiency, which furthermore induces a lowering in cell volume. In addition, through a comparison of weight changes under regular and heavy water vapor pressure, strong evidenc...
متن کاملCation non-stoichiometry in yttrium-doped barium zirconate: phase behavior, microstructure, and proton conductivity
Recent literature indicates that cation non-stoichiometry in proton-conducting perovskite oxides (ABO3) can strongly influence their transport properties. Here we have investigated A-site nonstoichiometry in Ba1 xZr0.8Y0.2O3 d, a candidate electrolyte material for fuel cell and other electrochemical applications. Synthesis is performed using a chemical solution approach in which the barium defi...
متن کاملAtomic Resolution Distortion Analysis of Yttrium-Doped Barium Zirconate
Ionic transport dynamics underpins the functionality of most energy storage and conversion technologies. Yttrium-doped barium zirconate (Y-BZO) has attracted attention as a promising electrolyte for proton-conducting solid oxide fuel cells (PC-SOFCs), which stems from its high proton conductivity and excellent chemical stability at intermediate temperatures (400-700°C) [1]. The Grotthuss mechan...
متن کاملElectronic and structural properties of interfaces between electron donor & acceptor molecules and conductive electrodes
The present work is embedded in the field of organic electronics, where charge injection into any kind of device is critically determined by the electronic and structural properties of the interfaces between the electrodes and the conjugated organic materials (COMs). Three main topics are addressed: energy level tuning with new or so far unexplored strong electron (i) donor and (ii) acceptor ma...
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ژورنال
عنوان ژورنال: Journal of Materials Chemistry A
سال: 2015
ISSN: 2050-7488,2050-7496
DOI: 10.1039/c4ta05701e